Method of and apparatus for packaging product masses in a form, fill and seal machine
US4876842A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 15, 1988 |
| Grant date | Oct 31, 1989 |
| Priority date | — |
| Expiry date | Jan 15, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB31B70/8132
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of and apparatus for packaging product masses in a form, fill and seal machine, wherein a continuous length of packaging film is joined in running relation by a continuous length of separately formed plastic reclosable fastener assembly having interlock profile strips spot sealed together at package length intervals. The corunning fastener strip assembly and the packaging film are oriented so that the spot seals of the strip are located in alignment with the spaces between the product masses on the film to assure that the fastener strip assembly will be cross sealed at the spot seals when the film is cross sealed between the product masses to provide individual packages. The orienting may be effected by an indexing arrangement including sensor response to index marks on the film and the fastener assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.